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Finding the Fourth Proportional to 357,756.60, 493,680.20 and 196,608.18

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Solution

The fourth proportional to 357,756.60, 493,680.20 and 196,608.18 is: 271,306.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,756.60 : 493,680.20 = 196,608.18 : x
  2. Step 2: Convert to fraction form
    357,756.60/493,680.20 = 196,608.18/x
  3. Step 3: Cross multiply
    357,756.60x = 493,680.20 × 196,608.18
  4. Step 4: Simplify right side
    357,756.60x = 97,061,564,641.00
  5. Step 5: Solve for x
    x = 97,061,564,641.00/357,756.60
  6. Step 6: Final answer
    x = 271,306.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.